diff options
Diffstat (limited to 'usrp2/sdr_lib/rx_dcoffset_tb.v')
| -rw-r--r-- | usrp2/sdr_lib/rx_dcoffset_tb.v | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/usrp2/sdr_lib/rx_dcoffset_tb.v b/usrp2/sdr_lib/rx_dcoffset_tb.v index b0dd8cb05..b4fb66ad7 100644 --- a/usrp2/sdr_lib/rx_dcoffset_tb.v +++ b/usrp2/sdr_lib/rx_dcoffset_tb.v @@ -29,14 +29,26 @@ module rx_dcoffset_tb(); initial $dumpfile("rx_dcoffset_tb.vcd"); initial $dumpvars(0,rx_dcoffset_tb); - reg [13:0] adc_in = 7; + reg [13:0] adc_in; wire [13:0] adc_out; always @(posedge clk) - $display("%d\t%d",adc_in,adc_out); + begin + if(adc_in[13]) + $write("-%d,",-adc_in); + else + $write("%d,",adc_in); + if(adc_out[13]) + $write("-%d\n",-adc_out); + else + $write("%d\n",adc_out); + end - rx_dcoffset #(.WIDTH(14),.ADDR(0)) + rx_dcoffset #(.WIDTH(14),.ADDR(0), .alpha_shift(8)) rx_dcoffset(.clk(clk),.rst(rst),.set_stb(0),.set_addr(0),.set_data(0), - .adc_in(adc_in),.adc_out(adc_out)); + .in(adc_in),.out(adc_out)); + + always @(posedge clk) + adc_in <= (($random % 473) + 23)/4; endmodule // longfifo_tb |